Removes the difficulty of flange aligning and squaring;Tool holds a square in the needed position without tying up one's hands;Base is notched at either end for ease in aligning on the center line of the pipe;Two 25-pound pull, cast-in magnets for holding either a flat horizontal or vertical position;Base accepts either leg of a standard or combination square and works on pipe diameters from 1 on up, requiring only the extension of the legs of the square being used to accommodate larger diametersRemoves the difficulty of flange aligning and squaringBase is notched at either end for ease in aligning on the center line of the pipeTwo 25-pound pull, cast-in magnets for holding either a flat horizontal or vertical positionTool holds a square in the needed position without tying up one's handsBase accepts either leg of a standard or combination square and works on pipe diameters from 1" on up, requiring only the extension of the legs of the square being used to accommodate larger diameters